Serial transmission box



FIG. 1 is a front elevational view of serial transmission box embodying our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top, front and left side perspective view thereof;

FIG. 7 is a rear, bottom and right side perspective view thereof; and,

FIG. 8 is top, front and left side perspective view thereof when in use with a supply and exhaust block, a plurality of solenoid valves, an end block and mounting rail.

The supply and exhaust block, solenoid valves, and block and mounting rail shown in phantom lines in FIG. 8 are shown for illustrative purposes only and form no part of the claimed design. 

The ornamental design for serial transmission box, as shown and described. 